package cn.tedu.egweibo9.controller;

import cn.tedu.egweibo9.common.response.JsonResult;
import cn.tedu.egweibo9.common.response.StatusCode;
import cn.tedu.egweibo9.mapper.UserMapper;
import cn.tedu.egweibo9.pojo.dto.UserLoginDTO;
import cn.tedu.egweibo9.pojo.dto.UserRegDTO;
import cn.tedu.egweibo9.pojo.entity.Comment;
import cn.tedu.egweibo9.pojo.entity.User;
import cn.tedu.egweibo9.pojo.vo.UserVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import javax.servlet.http.HttpSession;
import java.util.Date;

@RestController
@Api(tags = "01.用户模块")
@RequestMapping("v1/users/")
@Slf4j
public class UserController {

    @Autowired
    private UserMapper userMapper;

    @ApiOperation("注册功能")
    @PostMapping("reg")
    public JsonResult reg(@RequestBody @Validated UserRegDTO userRegDTO){
        log.debug("userRegDTO = " + userRegDTO);

        String username = userRegDTO.getUsername();
        UserVO userVO = userMapper.selectByUsername(username);
        if(userVO != null){
            return new JsonResult(StatusCode.USERNAME_ALREADY_EXISTS);
        }
        User user = new User();
        BeanUtils.copyProperties(userRegDTO,user);
        user.setCreated(new Date());

        userMapper.insertUser(user);

        return JsonResult.ok();
    }

    @ApiOperation("登录功能")
    @PostMapping("login")
    public JsonResult login(@RequestBody UserLoginDTO userLoginDTO, @ApiIgnore HttpSession session){
        log.debug("userLoginDTO = " + userLoginDTO);

        String username = userLoginDTO.getUsername();
        String password = userLoginDTO.getPassword();

        UserVO userVO = userMapper.selectByUsername(username);
        if(userVO == null){
            return new JsonResult(StatusCode.USERNAME_ERROR);
        }
        if(password.equals(userVO.getPassword())){
            session.setAttribute("user",userVO);
            return JsonResult.ok();
        }
        return new JsonResult(StatusCode.PASSWORD_ERROR);
    }

    @ApiOperation("获取当前用户")
    @GetMapping("currentUser")
    public JsonResult currentUser(@ApiIgnore HttpSession session){
        UserVO userVO = (UserVO) session.getAttribute("user");
        return JsonResult.ok(userVO);
    }

    @ApiOperation("退出登录")
    @GetMapping("logout")
    public JsonResult logout(@ApiIgnore HttpSession session){
        session.removeAttribute("user");
        return JsonResult.ok("退出登录");
    }
}
